Re: How to do nested foreach with RDD

Hi Reza, Yes, I just found RDD.cartesian(). Very useful. Thanks, David On Sun, Mar 22, 2015 at 5:08 PM Reza Zadeh wrote: > You can do this with the 'cartesian' product method on RDD. For example: > > val rdd1 = ... > val rdd2 = ... > > val combinations = rdd1.cartesian(rdd2).filter{ case (a,b

Re: How to do nested foreach with RDD

You can do this with the 'cartesian' product method on RDD. For example: val rdd1 = ... val rdd2 = ... val combinations = rdd1.cartesian(rdd2).filter{ case (a,b) => a < b } Reza On Sat, Mar 21, 2015 at 10:37 PM, Xi Shen wrote: > Hi, > > I have two big RDD, and I need to do some math against e

How to do nested foreach with RDD

Hi, I have two big RDD, and I need to do some math against each pair of them. Traditionally, it is like a nested for-loop. But for RDD, it cause a nested RDD which is prohibited. Currently, I am collecting one of them, then do a nested for-loop, so to avoid nested RDD. But would like to know if t